₦airaland Forum

I once undertook to extract data from the PVGIS website, to show a client why the south face was overall the best orientation to place the panels. The data represents conservative averages over 2005-2020 for hourly PV production per 1kw. The data is for ILORIN particularly, I assume the data will vary for other locations due to unique sun path at each location.
MONTH: ORIENTATION WITH HIGHEST PV OUTPUT/KW
JAN : SOUTH
FEB: SOUTH
MAR: SOUTH
APR: FLAT
MAY: NORTH
JUN: NORTH
JUL: NORTH
AUG: WEST
SEP: WEST
OCT: SOUTH
NOV: SOUTH
DEC : SOUTH

Practical results may vary.

ojesymsym:
Glad to finally see someone who has panels facing both North and South.

There is a school of thought that believes that the position of the sun during the raining season favors solar panels that are facing the North, if you haven't already compared the output of both panels (you can use ratios if there are of different capacity), would you be kind enough to do run the average output data over a period?

jonescosmos:
You can google how to protect your Inverter from in-rush current for more info.

Quite correct about the inrush current.

Will prowse uses a pre-charge resistor too before connecting the batteries to the inverter. A cheap alternative is using a 220v/100w or 200w tungsten filament bulb instead of the resistor. In most cases, the bulb will glow slightly when connected inline with one of the battery cables. A 30second wait is usually enough to eliminate such in-rush sparks. Below a 48v tungsten bulb was used. (In absence of that, I use the 100w bulb readily available, wired with a lamp holder and 2 leads. I just hold it for longer)


https://www.youtube.com/watch?v=DOrJ5AH9yjM

https://diysolarforum.com/threads/has-anyone-solved-this-inrush-current-limiter-precharging-circuit-issue.82666/...

https://diysolarforum.com/threads/do-most-builders-users-not-use-inverter-precharge.65222/

The above link discusses the issue when the BMS shuts down for some time, and an inrush current occurs when the BMS switches on again. In this case, the external pre-charge resistor or bulb is of no help.


Hope this helps someone

Daaaaa:
I am Lawson, a year one medicine student in international European University, Kyiv.
Please, if you live in Kyiv or around International European University, let us meet.
Thank you

Hi, can we exchange contacts? I need info about the school from you. Thanks

NiyiOmoIyunade:
I tend to agree with this position to a large degree.

I had the LG inverter ACs (GenCool) I believe which I ultimately phased out all 3 units in favor of Panasonic 1hp non inverter ACs.

It is correct that the inverter ACs progressively use less power after several hours run, I used to wake up to like 300w-400w consumption from a 1hp inverter AC however like Oga Adrusa said, the laws of physics have not changed - the AC is achieving good power savings at the expense of cooling - an AC compressor running at 400w is definitely doing less cooling work than a similar compressor at 800w.

Simply the inverter ACs do not cool as well as the normal ACs.

As for setting target at 25°C - this a good practice, your AC would never bring the ambient down from 32°C to to 18°C in the tropics without special measures. An AC can achieve 26°C temps in a room and thereafter work less cycles and use less power.

Thank you. Much appreciated

Saipro:
1.5hp GenCool 2 running at 25°C after about an hour in my sitting room drops to about 300W. Amazing because the original GenCool has a minimum of around 600W operating power.

In real life terms, I can run two 1.5hp GenCool 2 all night and wake to more than 50% battery left. One of them no longer goes off. If energy generation/storage isn't an issue, leaving them on guarantees a room maintained permanently cool.

Turbo mode consumes (wastes) absurd amounts of power. I no longer use it. I do not recommend it either unless you're at immediate risk of a heatstroke.

Thank you.

GeorgeD1:
brother,
this test you're suggesting is totally unnecessary. i have a couple genpals or what lg calls 'inverter' ac and i can tell you it does
consume less power and is more efficient over time compared to traditional acs.
your energy savings should not be limited to a narrow 24/48hrs range else you will miss the whole essence. rather think more
of a wider band like perhaps 3, 6 or 12 months. and for this you will really need an energy meter plugged in permanently to
that equipment.

Thanks, GeorgeD1!

ojeysky:
My brother I thought I did not read the content well ni o.....

You read well. Thanks!!

adrusa:
Very funny! Someone should should kill his or battery to proof a moot point. In my humble opinion, I don't know how much is there to gain by using "inverter ac". This is a matter of physics. Unless, the inverter ac makers have found ways of producing or destroying energy, temperature for temperature, the two types of AC will end up consuming similar energy. Starting and stopping consumes more energy overall than allowing the thing to run uninterrupted. Motors need more energy to start than to keep running.

Thanks for the info...

Guys, good day.
I need some info.
I read online that running an inverter aircon 24/7 at 25°c is more efficient and consumes less energy in the long term than running it on turbo mode for a few hours and switching to gen mode. I do not have the battery capacity to run this test 24/7, can you guys help out and run a 1hp inverter AC for 24/48hrs to compare kWh consumed @25°c vs gen/turbo modes? Anyone with substation capacity PV/battery bank should kindly assist with this small test.
@NiyiOmoIyunade
@ojeysky
@Adrusa
@olopan
@GeorgeD1
@babaegun
@dapsyra
@oshomo12
@McTrinity
@Valto
@dam5reey
@Saipro

Muchos gracias!!

Ogonna00:
Thanks a lot, I really appreciate.
Please can I connect with you? I've sent an email already. Looking forward to reading from you.

Replied your email

Ogonna00:
Guys pls can someone help with this, its urgent please

First of all, calculate your expenses as given on the polish embassy website include accommodation for 1 year, tuition, cost of living and return ticket. Your tuition fee will vary as per the course and university you have chosen.

Its supposed to be his payslips, certicate of employment ( from the company he works with stating he is their employee), a letter of sponsorship written by him on your behalf, preferably signed by his own hand. You notarize the sponsorship letter.
Bank account details are not accepted.

Second option is him opening a CC in his name, and writing a sponsorship letter stating that it was opened on your behalf.

Hope this helps

Thank you for this!

Hi,
Neat installation. I see a PV isolator in.that install, did you get it locally?
If yes, how much? Also, what operating voltage is it rated for?
Thanks

mcTrinity:
We still offer the best design and installation... Anywhere across Nigeria; exception of North and few part of East

Happy Children's day to us all... Lollzzz

dejidotun2000:
I have never actually bought one before but try Arena market at Oshodi.

Disconnect the part and take it along with you so as to be sure of a proper fit.

Thanks for the pointers.

earthrealm:
Unscrew, cut off burnt part with cable lock, buy new cable lock, crimp and install back.
Cable lock is about 200 naira for 20mm

Thanks. Its the inverter terminal that has melted along with the cable lugs. I can get cable lugs but its safer to change the terminal too.

Good day guys.
Please can anyone sell spares or replacement parts for this DC terminal. A friends inverter terminal is melted and kaput.
Any link or contact is welcome.
Thanks

ojesymsym:
Baba, u wan break the glass? It is usually the aluminum part that is slide on the ladder.

Personally, I prefer using a decommission 10mm cable . The strands in the cable serve as a strong form of support, I don't trust those ropes if they will be able to hold for high rising buildings.

If its the wide flat one, it holds up pretty good. Its about 2" wide. Quite strong, doesn't cut into the hand when pulling up a heavy panel, and a big roll is less expensive than 10mm decommissioned cable. Lol.
Used it to assist in trimming overhanging branches if a tree shading a selected roof. It withstood the stress okay.

1st way: get a short length of 8mm iron rod, have an iron bender make the shape of a hook at one end and a closed loop at the other. Tie the flat rope Mr Niyi advised you use at one end, hook the other end through the mounting holes/ or eyelets at spots closest to the edge of the panels. That's where a paper I read states is supposed to be the strongest part of the frame. Its a 3man job. I bought a roll of the flat rope, you need enough slack in gusty wind conditions

2. They sell miniature clasps, like those on a safety harness, not exactly mettalic - the metallic version of a keyholder clasp. The flat rope can be tied in a knot at one end and the other end of the clasp be put in the mounting holes. This option should be your last option. 2 disadvantages of this option: fiddling with the spring release to remove the hook from.the panel may become tricky at great heights. Secondly, if roughly handled, the bottom.end of the clasp can snap off, which will a costly accident.

The 8mm hook stands up to the stress of use, and sliding the panel up the surface of a slanted ladder reduces the danger and stress on those pulling it up.

N.B If a pulley is used, it has to be fixed to something, before it can be effective. On a 2-3 story building, that's not too nice a prospect.

Its also wise to have your electrician or carpenter go into the roof from the manhole to inspect the roof beams - IF the opportunity exists. I avoided a nasty surprise that way. The lightest member of my crew had to virtually tiptoe past that section of the roof. It was scary.

ceaser:
You're gonna need a pulley for that. Or which other pivot point or fulcrum do you plan the rope to swing on, the edge of the roof itself?



@bolded
Does the ropes go in those holes in the frame? Cos I think those holes may be too tiny to accommodate a fairly strong rope from going in.

Valto:
get a growatts and reconfigure your panels to 4s2p

What is the price for the growatt?

Valto:
35k for just 150w panel is on the high side. 70k can get u 3pcs with small change

Monsieur Valto,
Please do you have the 3kva Sorotec hybrid inverter?

Price?

Thanks?

ceaser:
Where can you get those thick bus bars in Nigeria?

Where they sell electrical materials for earthing.If you want something thicker, try shops selling L.V substation materials ask for copper tape.

ojeysky:
If you can up your budget to 10kva then get a dunamics stab.....it simply rocks!

Hi, any link to where it can be purchased, pics or something helpful?

Thanks

@ aorseer

Glad to know you made it finally. Hoped it has sparked a greater interest in all things RE. Wish you best of all God has on offer this side of heaven.
Let me also congratulate you on your graduation.

Stay blessed

ceaser:
Gate dimensions (LxW) - 13.5ft by 7ft Entrance dimensions (LxW) - 11ft by open height.
Motor specs: 220v 50hz AC voltage supply. 200 watts current draw. Power of gate manipulator: 500kg to 1000kg

thanks.

ceaser:
I installed a standalone setup for a 200 watts motor AC gate opener.

1000 watts surge pure sine wave inverter
28 amps AGM battery
10 amps PWM SCC
2 pcs 50 watts solar panel connect d in parallel.

hi, can you share specs of the motor you used? and maybe some pixs of how large (size) a gate it was opening?

many thanks

dataking:
Please which of the series diagram is the best for running 4 batteries in Series.

Thanks so much.

hi, please can you share which software you used to draw up your sketch?

many thanks

Omalily1:
Interview transcript alert :
Me: (In a humble voice) Good morning sir, please I am here for my student visa interview scheduled for 7:00am.
Mr Paulinus : Good morning, ok please go and come back around 6:30am.
Me: Ok, thank you sir.

N:B -Please note that Paulinus is not that bad as hyped here. The code is for you to listen attentively as he calls out each documents no slacking. Do not interrupt him with " Please sir what did you call previously etc" else he will replace you immediately with another from the queue.

Me :In humble voice and polite tone). Good morning ma (Slight smile on my face)

VO: The president Frank Walter Steinmeier what was he doing before he assumed office?

Me: Answered it as it relates to my career goals and mentioned relevant courses I will be taking that relates to what I want to specialize in.

VO : Smiling you are welcome. You too.

God bless everyone. May the good lord grant all your heart desires.Those waiting for AD, AM, all prospective Summer applicants don't give up, stay strong, it shall end in praise for all. (Amen)

there is a saying I love: the humble calf will suck the teats of 2 mothers. your approach was on point and the favor you received in response is noted.
one has to read up on the personal profile of key members of the German government.. first time I am reading that a question is asked about what the president was doing BEFORE he was elected.
I also note that you mentioned the key course modules in the masters program that relate to your present qualification and how it applies to your career path. nice one. I wrote down all courses on offer for each of my target M.sc. its not a waste of time. thank you.

Go to DE and succeed.

Haryanfhe:
Good day everyone, being here for a while but hardly post. I've been having AD issues and now I'm thinking of deferring my admission till next year, (since no AD since June). The problem I'm having now is that I already funded my BA(a big mistake I made before joining NL), how can I unblock this money or can I leave the money there till next year? Also, If there's anybody that has experienced this before, I'll appreciate all help rendered, please I need your advice good people. Thank you
(I'm so sad but what can I do � )

hi, you will need a letter from the embassy stating that you will no longer be going to Germany, were denied a visa or cancelled your visa application. you will forward this mail to the bank you funded with. money will be reversed/refunded to the account you initially sent it from.

my advice? if money is not on loan, and you still want to go to Germany, leave it there. if you withdraw it and are not disciplined, needs will arise that will prompt you to spend it. when the BA is required again, then the hustle starts again?

but, its your money. feel free to do as you please. cheers

sugarmike:
chai...i have the Dom. account with GTbank that is why am seeing it as an option. please do you know if Access bank have any other means of transfering the fund without using Dom.account?

hi, if funds are leaving Nigeria to anywhere outside the country in bulk. Dom account is the best way. several people.have posted reliable banks which will transfer it for you without issues. you will.DEPOSIT the funds more than once to your Dom account ( to stay within EFCC limits), and the bank will transfer once to your blocked account. this way is the cheapest as you will pay telex, off shore charges , VAT charges only once. of you transfer it I'm small chunks, you will pay telex & off shore charges per each transaction you make.

STANBIC, ACCESS, DIAMONDBANK, ZENITH are reported as okay. GTB has low transfer limits (€1000/week). stay guided
cheers.

p.s stay away from.Form A ! learn from the pains of others.

modified: someone has mentioned FIRST BANK TOO

sassy92:
AMEN!!!! Thanks so much for your prayers. Although i think you may have me confused with some one else because I'm a prospective Summer 2020 applicant. Thanks so much once again.

no worries, we will meet up with you by winter 2020. at least I am sure you will post your "just landed " posts for all to enjoy. thanks for.all.the help you have been rendering to all.

stay blessed.

janettee:
Cruisecontorll does have a point though but I guess because it's him, it would be seen as negativity based on his previous posts .

Wasn't it on this same german thread that someone's appointment got cancelled by an unknown person who was also on this same thread?, so I won't be surprised if there are scammers here too.

@ Janette, yes I read it way back on the thread. the guy mistakenly posted his AD mail with the link still active somehow and his AD got cancelled before he pulled down the post.

cruisecontrol's advice may be helpful but I guess people are put off by the manner of presentation and the tone of his post.

there are still good guys freely donating
information here, posting helpful links, materials, replying private emails and other stuff. i admit too, there may be harmful people also. as one guy posted before, we can all check people's profiles before responding to private chats. if anyone wants to pm anybody else, do the needful and inform the fellow first on the forum. if the fellow accepts, good. if not, then find someone else or post your query on the forum for others to benefit also.

fibe:
AM Landed today. interview date 15th August.. Rhine waal University of Applied sciences.Sent proof of funding to Email 2 weeks after interview. Enrollment deadline:15th October. Those waiting for AM,AD,Visum may God grant you all. Thank You @gspeed for your support. you are a guardian angel. Me waiting for you

congrats!! Go to DE and prosper.